Data/hora: 17/06/2024 16:00:55

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 20/06/2018
Data da última atualização: | 25/02/2019
Autoria: | BEYERLEIN, P.; PEREIRA, H. dos S.
Afiliação: | Patrick Beyerlein, Universidade Federal do Amazonas; Henrique dos Santos Pereira, Universidade Federal do Amazonas.
Título: | Morphological diversity and identification key for landraces of the Amerindian yam in central Amazon.
Ano de publicação: | 2018
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 4, p. 405-418, abr. 2018.
Idioma: | Inglês
Notas: | Título em português: Diversidade morfológica e chave de identificação para variedades locais de cará na Amazônia Central.
Conteúdo: | The objective of this work was to select an optimal set of morphological descriptors, in order to characterize the phenotipical diversity of Amerindian yam (Dioscorea trifida) landraces cultivated in the municipality of Caapiranga, in the central Amazon region of Brazil, and to develop a botanical identification key for them. A collection of 140 accessions and an experimental plot with a representative sample of 20 landraces were used to test 64 morphological descriptors for the aerial and subterranean plant parts. Forty-eight descriptors were selected, of which 13 were for tubers, 12 for stems, 14 for leaves, and 9 for inflorescences and seed. A cluster analysis based on the morphological data showed the formation of two landrace groups with greater similarity: white and purple pulp tubers. The results provide tools for in situ and ex situ conservation and for plant breeding programs, considering the importance of maintaining and recognizing the value of Ameridian yam as an important native genetic resource for food security in the region.
Palavras-Chave: | Agrobiodiversidade; Agrobiodiversity; Dioscoraceae; Native food plant; Phenotypic similarity; Planta alimentícia nativa; Similaridade fenotípica.
Thesagro: | Recurso Genético.
Thesaurus Nal: | Dioscorea trifida; Genetic resources.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/178840/1/Morphological-diversity-and-identification-key.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (62748-1) - UPE - AP - DD -  -  -  - DIS